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News and information from UC Cooperative Extension about alfalfa and forage production.
Tractor & Hay bales
on June 29, 2018 at 6:07 AM
Armyworms are naturally fast spreading and cause very many atrocities to humans and its dependants. Armyworms larvae feed on leaves and this feeding will appear to have ragged edges. The migrating moths are most attracted to fields with grassy cover including, wheat, cover crops, emerging weeds and sometimes alfalfa. Larvae are nocturnal and can be difficult to find. Check under leaf litter during the day or you may find them hiding in the whorl of corn plants. However, leaf feeding is usually apparent.  
Chemical Control. There are several pesticide products currently labeled for armyworm control. Special insecticides meant for armyworms control are most effective when larvae are small. There is little benefit to spraying when the pest is full grown. We recommend regular spraying at night and rotating formulations if more than one application is required.
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